Rockwell Automation 1783-BMxxx Stratix 5700 Ethernet Managed Switches User Manual - Manual (Page 104)

104 Rockwell Automation Publication 1783-UM004E-EN-P - June 2014
Chapter 3 Switch Software Features
An address translation can be one of three types. The type of translation
determines the number of translation entries. A switch can have a maximum of
128 translation entries.
Table 7 - Number of Translation Entries by Translation Type
Translation
Type Translation
Entries Description
Single 1 Translates a single IP address.
Consists of the following:
• One private IP address
• One public IP address
Range Multiple Translates a range of IP addresses.
Consists of the following:
• One starting private IP address
• One starting public IP address
• Multiple entries based on the range you specify
Subnet 1 Translates all of the IP addresses within a subnet or portion of a subnet.
Consists of the following:
• One starting private IP address
• One starting public IP address aligned on valid subnet boundaries
• Subnet mask
EXAMPLE The following translation types count as 10 translation entries:
• Single translation for one device
• Range translation for eight devices
• Subnet translation for all the devices on the subnet
Singe and range translation types have a one-to-one relationship between
translations entries and addresses to be translated. However, subnet
translations have a one-to-many relationship allowing one translation entry
for many addresses.